SOLUTION: How many pounds of coffee beans that costs $2 per pound should be added to 10 pounds of coffee beans that costs $10 per pound to have a new blend of coffee that costs $4 per pound?

Question 1048917: How many pounds of coffee beans that costs $2 per pound should be added to 10 pounds of coffee beans that costs $10 per pound to have a new blend of coffee that costs $4 per pound?

Answer by ikleyn(52787) (Show Source): You can put this solution on YOUR website!
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How many pounds of coffee beans that costs $2 per pound should be added to 10 pounds of coffee beans that costs $10 per pound
to have a new blend of coffee that costs $4 per pound?
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Yours governing equation is 


2*x + 10*10 = (x+10)*4.


Solve for x, where x = "how many pounds of coffee beans should be added".


The left side is the cost of the blend.
The right side is the same, expressed by another way.

For detailed solutions of many similar problems see the lessons
- Word problems on mixtures for dry substances like coffee beans, nuts, cashew and peanuts
- Word problems on mixtures for dry substances like candies, dried fruits
in this site.

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